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HDFS-3400. DNs should be able start with jsvc even if security is disabled. Contributed by Aaron T. Myers

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git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1337017 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Eli Collins 2012-05-11 03:15:54 +00:00
parent ba6360e493
commit 8def56e51e
3 changed files with 23 additions and 16 deletions
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3
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -451,6 +451,9 @@ Release 2.0.0 - UNRELEASED
HDFS-3401. Cleanup DatanodeDescriptor creation in the tests. (eli)
HDFS-3400. DNs should be able start with jsvc even if security is disabled.
(atm via eli)
OPTIMIZATIONS
HDFS-3024. Improve performance of stringification in addStoredBlock (todd)

7
hadoop-hdfs-project/hadoop-hdfs/src/main/bin/hdfs
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@ -56,6 +56,7 @@ shift
# Determine if we're starting a secure datanode, and if so, redefine appropriate variables
if [ "$COMMAND" == "datanode" ] && [ "$EUID" -eq 0 ] && [ -n "$HADOOP_SECURE_DN_USER" ]; then
if [ -n "$JSVC_HOME" ]; then
if [ -n "$HADOOP_SECURE_DN_PID_DIR" ]; then
HADOOP_PID_DIR=$HADOOP_SECURE_DN_PID_DIR
fi
@ -66,6 +67,10 @@ if [ "$COMMAND" == "datanode" ] && [ "$EUID" -eq 0 ] && [ -n "$HADOOP_SECURE_DN_
HADOOP_IDENT_STRING=$HADOOP_SECURE_DN_USER
starting_secure_dn="true"
else
echo "It looks like you're trying to start a secure DN, but \$JSVC_HOME"\
"isn't set. Falling back to starting insecure DN."
fi
fi
if [ "$COMMAND" = "namenode" ] ; then
@ -130,7 +135,7 @@ if [ "$starting_secure_dn" = "true" ]; then
JSVC=$JSVC_HOME/jsvc
if [ ! -f $JSVC ]; then
echo "JSVC_HOME is not set correctly so jsvc can not be found. Jsvc is required to run secure datanodes. "
echo "JSVC_HOME is not set correctly so jsvc cannot be found. Jsvc is required to run secure datanodes. "
echo "Please download and install jsvc from http://archive.apache.org/dist/commons/daemon/binaries/ "\
"and set JSVC_HOME to the directory containing the jsvc binary."
exit

9
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/SecureDataNodeStarter.java
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@ -29,6 +29,7 @@
import org.apache.hadoop.hdfs.DFSConfigKeys;
import org.apache.hadoop.hdfs.server.common.HdfsServerConstants;
import org.apache.hadoop.http.HttpServer;
import org.apache.hadoop.security.UserGroupInformation;
import org.mortbay.jetty.nio.SelectChannelConnector;
/**
@ -60,10 +61,7 @@ public SecureResources(ServerSocket streamingSocket,
@Override
public void init(DaemonContext context) throws Exception {
System.err.println("Initializing secure datanode resources");
// We should only start up a secure datanode in a Kerberos-secured cluster
Configuration conf = new Configuration(); // Skip UGI method to not log in
if(!conf.get(HADOOP_SECURITY_AUTHENTICATION).equals("kerberos"))
throw new RuntimeException("Cannot start secure datanode in unsecure cluster");
Configuration conf = new Configuration();
// Stash command-line arguments for regular datanode
args = context.getArguments();
@ -98,7 +96,8 @@ public void init(DaemonContext context) throws Exception {
System.err.println("Successfully obtained privileged resources (streaming port = "
+ ss + " ) (http listener port = " + listener.getConnection() +")");
if (ss.getLocalPort() >= 1023 || listener.getPort() >= 1023) {
if ((ss.getLocalPort() >= 1023 || listener.getPort() >= 1023) &&
UserGroupInformation.isSecurityEnabled()) {
throw new RuntimeException("Cannot start secure datanode with unprivileged ports");
}
System.err.println("Opened streaming server at " + streamingAddr);